72100180

素因数分解:

$2^2\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{2729}}^1$

素因数の和:4059

約数の個数: 24

約数和(自身を含む): 151580520

約数和(自身を除く): 79480340

約数列:

[1, 2, 4, 5, 10, 20, 1321, 2642, 2729, 5284, 5458, 6605, 10916, 13210, 13645, 26420, 27290, 54580, 3605009, 7210018, 14420036, 18025045, 36050090, 72100180]

約数ペア:

[(1, 72100180), (2, 36050090), (4, 18025045), (5, 14420036), (10, 7210018), (20, 3605009), (1321, 54580), (2642, 27290), (2729, 26420), (5284, 13645), (5458, 13210), (6605, 10916)]